Azure Infrastructure as Code

9 Testing ARM templates

This chapter covers

• Writing tests to validate your code
• Choosing the best test scenario for your infrastructure
• Using different tools to test and validate your templates
• Writing custom tests using Pester and PowerShell
• Running tests in your Azure DevOps pipeline

When writing software these days, it is common to also write tests. One of the main reasons for writing tests is to verify that the code works when you write it and that the code still works after making changes later on. You write tests to build confidence that a change does not negatively impact the quality of the code and that the software is ready for deployment into production.

The same applies to testing Infrastructure as Code. When you’re talking about ...